Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:07:20 2013 Optimize a model with 1014 rows, 3012 columns and 8021 nonzeros Presolve removed 356 rows and 1043 columns Presolve time: 0.07s Presolved: 658 rows, 1969 columns, 3938 nonzeros Variable types: 1313 continuous, 656 integer (656 binary) Found heuristic solution: objective 2689.1102444 Root relaxation: objective 2.688792e+03, 2 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2688.79151 0 1 2689.11024 2688.79151 0.01% - 0s Explored 0 nodes (2 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.689110244364e+03, best bound 2.689110244364e+03, gap 0.0%